From: Dave Burt <dave@...>
Date: 2006-03-25T16:18:55+09:00
Subject: Re: [QUIZ] Object Query Language for Ruby?

Victor Shepelev wrote:
> Today I've stubled upon an interesting article at CodeProject:
>
> Karmencita: an object query language for .NET
> ...
> // initialize the data source
> // (in this case a Stack of Customers)
> Stack<Customer> customers = .....

customers = ...

> // initialize Karmencita with
> // the type of object to be queries
> ObjectQuery<Customer> oq =
>          new ObjectQuery<Customer>();
>
> // write the query
> string query = "Name = [Thor the Mighty]" +
>               " and IsMale = true and BirthDate" +
>               " < [1,1,1910]";

oq = proc {|cust| cust.name == "Thor the Mighty" &&
                  cust.male? && cust.birth_date < Date.new(1910) }

> //run the query
> Customer[] processes = (Customer[]) oq.Select(customers, query);

processes = customers.select(&oq)

> I have no idea about when and how can be it useful, but it can be 
> intersting
> to do the trick for Ruby, ha?

It's already there!

Cheers,
Dave